Instrument pressure injury preventing nasal oxygen cannula
By introducing soft airbags and wavy tube designs into the nasal oxygen tube, adjusting the nose pressure, the pressure damage caused by high-flow nasal oxygen tube is solved, and the patient's comfort and safety is improved.
Patent Information
- Application Number
- CN202422105830.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-29
AI Technical Summary
Due to the hard design of existing high-flow nasal oxygen tubes, the nasolabial wings and nasolabial grooves, are subject to long-term pressure, which can easily cause pressure damage, affect the patient's comfort and safety, and is difficult to effectively prevent.
A nasal oxygen tube for preventing pressure damage to the instrument was designed, adopting a soft airbag structure, which adjusts the nose height and fit degree through the airbag, disperses the pressure, combines the wavy tube design and adjustable air holes to ensure smooth airflow and adapt to different facial contours.
It effectively reduces the occurrence of pressure ulcers, improves the comfort and safety of patients' oxygen inhalation, reduces the amount of nursing work, and improves the efficiency of treatment.
Smart Images

Figure CN223183877U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a nasal oxygen tube for preventing pressure damage of equipment, belonging to the technical field of medical equipment. Background Art
[0002] High-flow nasal oxygen cannulas are used for patients with spontaneous breathing. They provide effective treatment by providing high-flow, heated and humidified respiratory gases. They can be connected to the respiratory circuits of various brands of high-flow respiratory humidification therapy devices for patients to use when inhaling oxygen. However, high-flow oxygen concentrators have high oxygen concentrations and large oxygen flow rates, so high-flow nasal oxygen cannulas are usually relatively stiff so that they can withstand higher airflow velocities. This rigid nasal oxygen cannula exerts pressure on the nose wings and nasolabial grooves for a long time, which can easily lead to continuous pressure on local skin and tissues, and then pressure sores. The annual incidence of device-related pressure injuries is 0.60%. Among them, nasal oxygen devices are the most common cause of device-related pressure injuries, with an incidence rate of 32%.
[0003] Pressure injuries to the nose can reduce patients' comfort and compliance with oxygen therapy, leading to increased anxiety and irritability when removing the oxygen tube or causing the tube to slip, resulting in decreased oxygen saturation and CO2 retention, which can be life-threatening. Even preventative measures (such as gauze and toilet paper) cannot prevent pressure sores, which can cause anxiety in nurses, increasing their workload and requiring them to make more rounds. Utility Model Content
[0004] The purpose of this utility model is to provide a nasal oxygen cannula that prevents instrument pressure damage in response to the above-mentioned problems, and to improve the high-flow nasal oxygen cannula, so as to improve the efficiency of patient treatment, ensure patient safety, reduce the occurrence of pressure damage, and improve the comfort of patient oxygen inhalation.
[0005] The technical solutions adopted in this utility model are as follows:
[0006] A nasal oxygen cannula for preventing pressure damage caused by equipment comprises a nasal suction head that passes through left and right, two upwardly arranged nasal catheters are provided above the nasal suction head, oxygen supply tubes are provided on both sides of the nasal suction head; air bags are provided on the inner sides of the nasal suction head and the oxygen supply tubes.
[0007] Optionally, the oxygen supply pipe is a wave pipe.
[0008] Optionally, the airbag is provided with air holes for inflation and deflation.
[0009] Optionally, a switch component is provided on the air hole; or, the air hole is connected to a charging and discharging air pipe, and a switch component is provided on the charging and discharging air pipe.
[0010] Optionally, the switch element is a self-sealing valve.
[0011] Optionally, the airbag is in an elongated shape, and both ends of the airbag are located on the cheeks.
[0012] Optionally, both ends of the air bag are connected to the oxygen supply tube.
[0013] Optionally, the air bag is detachably connected to the oxygen supply tube.
[0014] Optionally, a buckle is provided on the outer side of the airbag, and the buckle is engaged with the oxygen supply tube.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0016] The utility model provides a nasal oxygen tube for preventing pressure sores. A decompression airbag is installed at the rubber tube from the lower end of the nasal oxygen tube to the face. The nose height can be adjusted according to the amount of inflation. The arc of the airbag is close to the facial structure, which meets the needs of various people and provides more reliable decompression. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the inner side of a nasal oxygen cannula to prevent instrument pressure damage.
[0018] Figure 2 It is a top view of a nasal oxygen cannula to prevent pressure damage caused by the device.
[0019] Markings in the figure: 1-nasal suction tip, 2-nasal catheter, 3-oxygen tube, 4-air bag, 5-air hole, 6-buckle, 7-breathable layer. DETAILED DESCRIPTION
[0020] The present invention will be described in detail below with reference to the accompanying drawings.
[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0022] A nasal oxygen cannula that prevents pressure damage from an instrument, such as Figure 1 、 2 As shown, it includes a nasal suction head 1 that passes through the left and right sides, two upwardly arranged nasal catheters 2 are provided above the nasal suction head 1, and oxygen supply tubes 3 are provided on both sides of the nasal suction head 1; air bags 4 are provided on the inner sides of the nasal suction head 1 and the oxygen supply tubes 3.
[0023] Specifically, the nasal nozzle 1 is connected to the oxygen supply tube 3 on both sides for oxygen delivery. The nasal cannula 2 is inserted into the patient's nasal cavity to provide the patient with high-flow oxygen therapy with a constant inhaled oxygen concentration and constant temperature and humidity. The airbag 4 is located inside the nasal nozzle 1 and the oxygen supply tube 3 to disperse the pressure of the nasal oxygen cannula on the nose and nasolabial groove, reducing the pressure on the local skin and thus reducing the risk of pressure sores. Furthermore, the airbag 4 is made of a soft and elastic material, which can better adapt to the contours of the nose, reducing the pressure of the rigid nasal oxygen cannula on the nose, improving patient comfort, and alleviating pressure on local blood vessels, helping to maintain normal blood circulation and reducing tissue damage caused by blood circulation disorders.
[0024] As another specific embodiment, the oxygen supply tube 3 is a corrugated tube. The design of the corrugated tube makes it difficult to be flattened when subjected to external pressure, which can maintain smooth air flow and ensure that the patient can continue to receive oxygen at a predetermined flow rate and concentration.
[0025] As another specific embodiment, the airbag 4 is provided with an air hole 5 for inflation and deflation. The air hole 5 allows the inflation level of the airbag 4 to be adjusted, and the height of the nasal nozzle 1 can be adjusted according to the inflation level. This allows the patient to adjust the softness and hardness of the airbag 4 according to personal comfort, better fitting the nose, thereby achieving an optimal wearing experience, reducing air leakage, and ensuring the effectiveness of oxygen therapy.
[0026] In another specific embodiment, the air hole 5 is provided with a switch; alternatively, the air hole 5 is connected to an inflation / discharge pipe, which is provided with a switch. The switch prevents accidental deflation and ensures that the airbag 4 remains stably supported when needed. In this embodiment, the switch can adopt existing structures such as a two-way valve or a silicone inflation valve.
[0027] As another specific embodiment, the switch element is a self-sealing valve. The self-sealing valve is simple and easy to use, requiring no complex steps. It automatically seals when not deflated, preventing gas leakage and ensuring that the airbag 4 maintains the desired pressure and shape. Furthermore, the self-sealing valve can be made of a thicker flexible material, and a needle or thin tube can be inserted into the airbag 4 to pump and deflate the air. When the needle is withdrawn, the flexible material automatically deforms and fits, achieving self-sealing. Furthermore, the self-sealing valve can also be implemented in a form similar to a positive pressure switch.
[0028] In another specific embodiment, the airbag 4 is elongated, with both ends positioned on the cheeks. This elongated design helps evenly distribute pressure across the larger areas of the nasolabial groove and cheeks, rather than concentrating it in a small area. This reduces pressure on the skin and protects soft facial tissue from damage caused by friction and shear forces. Furthermore, the airbag can be adjusted to suit the individual patient's facial contours for a better fit.
[0029] As another specific embodiment, both ends of the airbag 4 are connected to the oxygen supply tube 3. The fixed connection integrates the airbag 4 and the oxygen supply tube 3, ensuring that the position of the airbag 4 on the nasal oxygen cannula remains stable and will not shift due to the patient's activities or external factors, thereby preventing the airbag 4 from accidentally falling off or the oxygen supply tube 3 from separating from the airbag 4.
[0030] As another specific embodiment, the airbag 4 is detachably connected to the oxygen supply tube 3. Patients can choose airbags 4 of different sizes or shapes according to their facial features and comfort requirements to achieve personalized adaptation.
[0031] In another specific embodiment, the airbag 4 is provided with a buckle 6 on its exterior, which engages with the oxygen delivery tube 3. This buckle 6 connection allows for quick and easy assembly and disassembly of the assembly without the use of tools, saving time and labor. It is intuitive and easy to use, even for untrained personnel. Furthermore, it mates with the bellows and engages with the smaller diameter, providing a stable fixation and preventing the components from loosening or shifting after connection.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention extends to any new features or any new combinations disclosed in this specification, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
[0033] In the embodiments of the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integrated connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.
Claims
1. A nasal oxygen cannula for preventing pressure damage caused by an instrument, characterized in that: The invention comprises a nasal suction head (1) which is passed through from left to right. Two nasal tubes (2) arranged upward are provided above the nasal suction head (1). Oxygen supply tubes (3) are provided on both sides of the nasal suction head (1). Air bags (4) are provided on the inner sides of the nasal suction head (1) and the oxygen supply tubes (3).
2. The nasal oxygen cannula for preventing instrument pressure damage according to claim 1, characterized in that: The oxygen supply pipe (3) is a wave pipe.
3. The nasal oxygen cannula for preventing instrument pressure damage according to claim 1, wherein: The air bag (4) is provided with an air hole (5) for inflation and deflation.
4. The nasal oxygen cannula for preventing pressure damage caused by an instrument according to claim 3, wherein: The air hole (5) is provided with a switch component; or the air hole (5) is connected to a charging and discharging air pipe, and the charging and discharging air pipe is provided with a switch component.
5. The nasal oxygen cannula for preventing pressure damage caused by an instrument according to claim 4, characterized in that: The switch element is a self-sealing valve.
6. The nasal oxygen cannula for preventing instrument pressure damage according to claim 1, wherein: The airbag (4) is in an elongated strip shape, and both ends of the airbag (4) are located on the cheeks.
7. The nasal oxygen cannula for preventing instrument pressure damage according to claim 6, characterized in that: Both ends of the air bag (4) are connected to the oxygen supply tube (3).
8. The nasal oxygen cannula for preventing pressure damage caused by an instrument according to claim 7, wherein: The air bag (4) is detachably connected to the oxygen supply tube (3).
9. The nasal oxygen cannula for preventing pressure damage caused by an instrument according to claim 8, characterized in that: A buckle (6) is provided on the outer side of the air bag (4), and the buckle (6) is engaged with the oxygen supply tube (3).